Euphyllia glabrescens is found across the Indo-Pacific. Distinguished from Hammer (E. ancora) by single tentacle tips ending in a small ball, vs Hammer's hammer-shaped split tip. Torch tentacles are longer, more flowing, and produce dramatic visual movement.
The hobby distinguishes Torches by origin:
Torches sting. Their sweeper tentacles can extend 6-8 inches at night and chemically attack any coral within reach. Plan for 6+ inch separation from non-Euphyllia neighbors. Other Euphyllias (Hammer, Frogspawn) generally co-exist peacefully due to similar chemistry.
Place mid-tank with low-to-moderate flow. Direct power head blast prevents tentacle extension and stresses the coral. Indirect, gentle flow produces the flowing tentacle expression Torches are loved for.
Euphyllia genus is uniquely susceptible to "brown jelly disease" - rapid tissue dissolution producing brown mucus around the dying head. Spreads to neighboring polyps fast. Treatment:
The Torch market has experienced significant pricing volatility. Holy Grail Torch traded at $5,000+ per head in 2020-2022, has come down to $1,500-3,500 as captive propagation increased. Watch market trends before paying premium.
Whatever specific topic brought you here, four fundamentals govern long-term aquarium success: water quality, parameter stability, biological filtration, and species-appropriate husbandry. Skip any one and the others struggle to compensate.
Water quality: ammonia + nitrite at zero, nitrate under 30 ppm freshwater + 10 ppm reef. Test weekly with API or Salifert kits. Use our water parameter checker to score your readings against your tank type.
Parameter stability: stable wrong parameters beat fluctuating ideal parameters. Most fish tolerate a wide pH range if it's stable. Sudden swings of 0.4+ pH or 5+°F kill fish faster than chronic suboptimal values. Use temperature controllers (Inkbird) + automated dosing for consistency.
Biological filtration: the bacterial colony on your filter media + rock + substrate is the engine. Never replace all media at once. Use our filter turnover calculator to size correctly.
Species-appropriate husbandry: research adult size, territoriality, diet, and tankmate compatibility before purchase. Use our tank stocking calculator + compatibility guides.
How long does an aquarium take to set up? 4-6 weeks for full cycling + first stocking. Use our cycle ETA calculator + how long does cycling take.
What's the best aquarium for beginners? 20-gallon long. Big enough for parameter stability, small enough for budget + space. See beginner picks.
How often should I do water changes? 25-30% weekly. See water change frequency Q&A + water change calculator.
Why does my fish keep dying? 5 leading causes: uncycled tank, wrong species pairings, no quarantine, undersized tank, neglected water-change schedule. See full diagnosis.
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